#include "llvm/IR/CallSite.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/Function.h"
+#include "llvm/IR/GetElementPtrTypeIterator.h"
#include "llvm/IR/Operator.h"
#include "llvm/IR/Type.h"
protected:
typedef TargetTransformInfo TTI;
- const DataLayout *DL;
+ const DataLayout &DL;
- explicit TargetTransformInfoImplBase(const DataLayout *DL)
- : DL(DL) {}
+ explicit TargetTransformInfoImplBase(const DataLayout &DL) : DL(DL) {}
public:
// Provide value semantics. MSVC requires that we spell all of these out.
TargetTransformInfoImplBase(const TargetTransformInfoImplBase &Arg)
: DL(Arg.DL) {}
- TargetTransformInfoImplBase(TargetTransformInfoImplBase &&Arg)
- : DL(std::move(Arg.DL)) {}
- TargetTransformInfoImplBase &
- operator=(const TargetTransformInfoImplBase &RHS) {
- DL = RHS.DL;
- return *this;
- }
- TargetTransformInfoImplBase &operator=(TargetTransformInfoImplBase &&RHS) {
- DL = std::move(RHS.DL);
- return *this;
- }
+ TargetTransformInfoImplBase(TargetTransformInfoImplBase &&Arg) : DL(Arg.DL) {}
+
+ const DataLayout &getDataLayout() const { return DL; }
unsigned getOperationCost(unsigned Opcode, Type *Ty, Type *OpTy) {
switch (Opcode) {
return TTI::TCC_Basic;
case Instruction::IntToPtr: {
- if (!DL)
- return TTI::TCC_Basic;
-
// An inttoptr cast is free so long as the input is a legal integer type
// which doesn't contain values outside the range of a pointer.
unsigned OpSize = OpTy->getScalarSizeInBits();
- if (DL->isLegalInteger(OpSize) &&
- OpSize <= DL->getPointerTypeSizeInBits(Ty))
+ if (DL.isLegalInteger(OpSize) &&
+ OpSize <= DL.getPointerTypeSizeInBits(Ty))
return TTI::TCC_Free;
// Otherwise it's not a no-op.
return TTI::TCC_Basic;
}
case Instruction::PtrToInt: {
- if (!DL)
- return TTI::TCC_Basic;
-
// A ptrtoint cast is free so long as the result is large enough to store
// the pointer, and a legal integer type.
unsigned DestSize = Ty->getScalarSizeInBits();
- if (DL->isLegalInteger(DestSize) &&
- DestSize >= DL->getPointerTypeSizeInBits(OpTy))
+ if (DL.isLegalInteger(DestSize) &&
+ DestSize >= DL.getPointerTypeSizeInBits(OpTy))
return TTI::TCC_Free;
// Otherwise it's not a no-op.
case Instruction::Trunc:
// trunc to a native type is free (assuming the target has compare and
// shift-right of the same width).
- if (DL && DL->isLegalInteger(DL->getTypeSizeInBits(Ty)))
+ if (DL.isLegalInteger(DL.getTypeSizeInBits(Ty)))
return TTI::TCC_Free;
return TTI::TCC_Basic;
}
}
- unsigned getGEPCost(const Value *Ptr, ArrayRef<const Value *> Operands) {
+ unsigned getGEPCost(Type *PointeeType, const Value *Ptr,
+ ArrayRef<const Value *> Operands) {
// In the basic model, we just assume that all-constant GEPs will be folded
// into their uses via addressing modes.
for (unsigned Idx = 0, Size = Operands.size(); Idx != Size; ++Idx)
bool isTruncateFree(Type *Ty1, Type *Ty2) { return false; }
+ bool isZExtFree(Type *Ty1, Type *Ty2) { return false; }
+
bool isProfitableToHoist(Instruction *I) { return true; }
bool isTypeLegal(Type *Ty) { return false; }
bool enableAggressiveInterleaving(bool LoopHasReductions) { return false; }
+ bool enableInterleavedAccessVectorization() { return false; }
+
TTI::PopcntSupportKind getPopcntSupport(unsigned IntTyWidthInBit) {
return TTI::PSK_Software;
}
Type *ExpectedType) {
return nullptr;
}
+
+ bool areInlineCompatible(const Function *Caller,
+ const Function *Callee) const {
+ return (Caller->getFnAttribute("target-cpu") ==
+ Callee->getFnAttribute("target-cpu")) &&
+ (Caller->getFnAttribute("target-features") ==
+ Callee->getFnAttribute("target-features"));
+ }
};
/// \brief CRTP base class for use as a mix-in that aids implementing
typedef TargetTransformInfoImplBase BaseT;
protected:
- explicit TargetTransformInfoImplCRTPBase(const DataLayout *DL)
- : BaseT(DL) {}
+ explicit TargetTransformInfoImplCRTPBase(const DataLayout &DL) : BaseT(DL) {}
public:
// Provide value semantics. MSVC requires that we spell all of these out.
: BaseT(static_cast<const BaseT &>(Arg)) {}
TargetTransformInfoImplCRTPBase(TargetTransformInfoImplCRTPBase &&Arg)
: BaseT(std::move(static_cast<BaseT &>(Arg))) {}
- TargetTransformInfoImplCRTPBase &
- operator=(const TargetTransformInfoImplCRTPBase &RHS) {
- BaseT::operator=(static_cast<const BaseT &>(RHS));
- return *this;
- }
- TargetTransformInfoImplCRTPBase &
- operator=(TargetTransformInfoImplCRTPBase &&RHS) {
- BaseT::operator=(std::move(static_cast<BaseT &>(RHS)));
- return *this;
- }
using BaseT::getCallCost;
return static_cast<T *>(this)->getCallCost(F, Arguments.size());
}
+ using BaseT::getGEPCost;
+
+ unsigned getGEPCost(Type *PointeeType, const Value *Ptr,
+ ArrayRef<const Value *> Operands) {
+ const GlobalValue *BaseGV = nullptr;
+ if (Ptr != nullptr) {
+ // TODO: will remove this when pointers have an opaque type.
+ assert(Ptr->getType()->getScalarType()->getPointerElementType() ==
+ PointeeType &&
+ "explicit pointee type doesn't match operand's pointee type");
+ BaseGV = dyn_cast<GlobalValue>(Ptr->stripPointerCasts());
+ }
+ bool HasBaseReg = (BaseGV == nullptr);
+ int64_t BaseOffset = 0;
+ int64_t Scale = 0;
+
+ // Assumes the address space is 0 when Ptr is nullptr.
+ unsigned AS =
+ (Ptr == nullptr ? 0 : Ptr->getType()->getPointerAddressSpace());
+ auto GTI = gep_type_begin(PointerType::get(PointeeType, AS), Operands);
+ for (auto I = Operands.begin(); I != Operands.end(); ++I, ++GTI) {
+ if (isa<SequentialType>(*GTI)) {
+ int64_t ElementSize = DL.getTypeAllocSize(GTI.getIndexedType());
+ if (const ConstantInt *ConstIdx = dyn_cast<ConstantInt>(*I)) {
+ BaseOffset += ConstIdx->getSExtValue() * ElementSize;
+ } else {
+ // Needs scale register.
+ if (Scale != 0) {
+ // No addressing mode takes two scale registers.
+ return TTI::TCC_Basic;
+ }
+ Scale = ElementSize;
+ }
+ } else {
+ StructType *STy = cast<StructType>(*GTI);
+ uint64_t Field = cast<ConstantInt>(*I)->getZExtValue();
+ BaseOffset += DL.getStructLayout(STy)->getElementOffset(Field);
+ }
+ }
+
+ if (static_cast<T *>(this)->isLegalAddressingMode(
+ PointerType::get(*GTI, AS), const_cast<GlobalValue *>(BaseGV),
+ BaseOffset, HasBaseReg, Scale, AS)) {
+ return TTI::TCC_Free;
+ }
+ return TTI::TCC_Basic;
+ }
+
using BaseT::getIntrinsicCost;
unsigned getIntrinsicCost(Intrinsic::ID IID, Type *RetTy,
return TTI::TCC_Free; // Model all PHI nodes as free.
if (const GEPOperator *GEP = dyn_cast<GEPOperator>(U)) {
- SmallVector<const Value *, 4> Indices(GEP->idx_begin(), GEP->idx_end());
- return static_cast<T *>(this)
- ->getGEPCost(GEP->getPointerOperand(), Indices);
+ SmallVector<Value *, 4> Indices(GEP->idx_begin(), GEP->idx_end());
+ return static_cast<T *>(this)->getGEPCost(
+ GEP->getSourceElementType(), GEP->getPointerOperand(), Indices);
}
if (auto CS = ImmutableCallSite(U)) {
U->getNumOperands() == 1 ? U->getOperand(0)->getType() : nullptr);
}
};
-} // namespace llvm
+}
#endif
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